As fas as I can see the brand is Acer. In terms of power, 750W are more than enough. I would have my considerations though regarding the brand, since there are a lot better branches in the market. For example Corsair and cooler master are among the top. Just to answer your question, yes your power supply is fine.
Hope this helps!
I know this is late to add in, but my PSU has ran for about 2 years without problems so I am hoping that means there wont be problems to come haha.